Home / 120,622,122.90-180,897,238.44-43,927,215.12

Finding the Fourth Proportional to 120,622,122.90, 180,897,238.44 and 43,927,215.12

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Solution

The fourth proportional to 120,622,122.90, 180,897,238.44 and 43,927,215.12 is: 65,877,732.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,622,122.90 : 180,897,238.44 = 43,927,215.12 : x
  2. Step 2: Convert to fraction form
    120,622,122.90/180,897,238.44 = 43,927,215.12/x
  3. Step 3: Cross multiply
    120,622,122.90x = 180,897,238.44 × 43,927,215.12
  4. Step 4: Simplify right side
    120,622,122.90x = 7,946,311,907,567,813
  5. Step 5: Solve for x
    x = 7,946,311,907,567,813/120,622,122.90
  6. Step 6: Final answer
    x = 65,877,732.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.